Pricing updated 2016-02-12. Prices are subject to change without notice.
Estrogens direct the development of the female genotype in embryogenesis and at puberty. Estradiol is the major estrogen secreted by the premenopausal ovary.1 Ethynyl estradiol is a synthetic analog of 17β-estradiol (Item No. 10006315). A USP-approved grade of ethynyl estradiol is often formulated in combination with a progestin such as norgestrel (Item No. 10006319)/levonorgestrel (Item No. 10006318) or desogestrel and provided for use as an oral contraceptive. Efficacy of oral administration of ethynyl estradiol is facilitated by the ethynyl substitution at the C-17 position, which inhibits first pass hepatic metabolism. Ethynyl estradiol is also rapidly and almost completely absorbed from the gastrointestinal tract.2
|Formulation||A crystalline solid|
WARNING - This product is not for human or veterinary use.
|Shipping||Room temperature in continental US; may vary elsewhere|
View the Cayman Structure Database for chemical structure definitions for many Cayman products
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